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TM5-4120-376-14
5-22. COMPRESSOR, ACCUMULATOR AND RELATED PARTS/Replace (Cont)
LOCATION/ITEM
Removal:
12. Remove four compressor mounting bushings (14).
Test:
Motor Burnout. Burnout of a compressor motor is indicated by lack of continuity of the motor
windings and the conditon of compressor oil, which must be determined after the compressor
has been removed from the refrigeration system. Causes of compressor motor burnout include
the following:
1. Low line voltage, which causes motor winding to overheat. Before burning out
completely, the overheated windings cause chemical breakdown of the refrigerant and the oil to
form sludge and other system contaminates.
2. Loss of refrigerant. An inadequate charge of refrigerant gas in the system reduces the
amount of cooling gas within the compressor, resulting in gradual overheating of the motor and
failure of the winding.
5-64
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